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27421 Nathanhan (2000 EK164)
Classification: Main-belt Asteroid          SPK-ID: 2027421
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1452024597644312 6.6626e-08  
a 2.740335612404878 2.6636e-08 au
q 2.34243214090362 1.8502e-07 au
i 5.635183926872433 7.257e-06 deg
node 182.0684160146461 5.5247e-05 deg
peri 181.4989645652328 5.8332e-05 deg
M 342.0657471945245 2.0306e-05 deg
tp 2457483.043873602260
(2016-Apr-04.54387360)
9.3855e-05 JED
period 1656.92960945333
4.54
2.4158e-05
6.614e-08
d
yr
n .2172693383871477 3.1678e-09 deg/d
Q 3.138239083906135 3.0503e-08 au
  Orbit Determination Parameters
   # obs. used (total)      765  
   data-arc span      11227 days (30.74 yr)  
   first obs. used      1984-10-20  
   last obs. used      2015-07-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54884  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 15:10:46  

Additional Information
 Earth MOID = 1.33823 au 
 Jupiter MOID = 2.31231 au 
 T_jup = 3.328 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2 mag n/a MPO299154  

27421 Nathanhan           Discovered 2000 Mar. 3 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Nathan Han (b. 1999) is a finalist in the 2011 Broadcom MASTERS, a math and science competition for middle-school students, for his biochemistry, medicine, health science and microbiology project. He attends the Jackson Mann K-8 School, Allston, Massachusetts.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20111210/MPCPages.arcLast Updated: 2011-12-12

[ show close-approach data ]
Alternate Designations
 2000 EK164 = 1984 UX4 = 1996 GA2 = 2000 GT175 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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